The equation of the line with an undefined slope that passes through (1, 2) is expressed in slope-intercept form as: x = 1.
If a line has an undefined slope, it means the line is a vertical line that intercepts only the x-axis at a point. The equation of this type of line can be expressed in slope-intercept form as x = b, where b is the x-coordinate of the point it passes through.
We are given that a line with an undefined slope passes through the point, (1, 2). The x-coordinate of this point is 1. This means the line intercepts the x-axis at 1.
Thus, in slope-intercept form, we can write the equation of this line as x = 1.
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